Home / 51,588.18-77,389.16-20,416.14

Finding the Fourth Proportional to 51,588.18, 77,389.16 and 20,416.14

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Solution

The fourth proportional to 51,588.18, 77,389.16 and 20,416.14 is: 30,626.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,588.18 : 77,389.16 = 20,416.14 : x
  2. Step 2: Convert to fraction form
    51,588.18/77,389.16 = 20,416.14/x
  3. Step 3: Cross multiply
    51,588.18x = 77,389.16 × 20,416.14
  4. Step 4: Simplify right side
    51,588.18x = 1,579,987,822.96
  5. Step 5: Solve for x
    x = 1,579,987,822.96/51,588.18
  6. Step 6: Final answer
    x = 30,626.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.